On my esxi 4.1 U1 host I see only Real-time performance data. However, on my other esx 4.0 hosts I see Real-time and 1 Week performance data. Why is that? And how do I get the 1 Week performance data on my ESXi host?
Turns out ntp time was not configured on the host. But even after correcting that, I still could not get anything other than Real-time data. I recycled vCenter and then it seemed to work. I had cycled vCenter previously so I tend to think it was the combination of setting the correct time and the recycle of vCenter. Though it probably also would have worked to remove and readd the host.
